Heavy-Duty Structural Integrity | Optimized for Preloaded Large-Diameter Connections
The Pyramid Hardware High-Strength Bolt (DIN 6914 / EN 14399) is engineered for the world's most demanding structural projects. These are not standard fasteners; they are specialized structural bolts designed for preloaded joints in steel buildings, bridges, and industrial towers. Manufactured from high-grade alloy steel and heat-treated to Class 10.9, our DIN 6914 bolts feature a larger head (across flats) than standard hex bolts to distribute the massive clamping forces required in structural engineering. Produced in Egypt at our IATF 16949 certified facility, these bolts are paired with DIN 6915 nuts and DIN 6916 washers to form a certified high-strength structural bolting assembly (HV sets).
Large-Series Hex Head:
Preloading Capacity:
Grade 10.9 Alloy Steel:
Environmental Protection:
Full Traceability:
|
Parameter |
Details |
|
Standard |
DIN 6914 / EN 14399-4 (HV Sets) |
|
Diameter Range |
M12, M16, M20, M22, M24, M27, M30, M36 |
|
Property Class |
10.9 (Standard) / 8.8 (Option) |
|
Head Style |
Heavy Hex Structural Head |
|
Thread Type |
Metric Coarse (Truncated for HDG allowance) |
|
System Type |
System HV (High-Strength Structural Bolting for Preloading) |
Alloy Steel (42CrMo or equivalent):
Surface Finishes:
Hot-Dip Galvanized (HDG):
Geomet 500 / Dacromet:
Sherardizing:
Bridge Construction:
1. Structural joints in highway, railway, and pedestrian bridges.
High-Rise Buildings:
2. Primary steel frame connections in commercial and residential skyscrapers.
Industrial Warehouses:
3. Large-span portal frames and heavy racking systems.
Wind Energy:
4. Tower segment connections for onshore and offshore wind turbines.
Power Plants:
5. Structural supports for turbines, boilers, and cooling towers.
Airport Terminals:
6. Large-scale steel roof structures and hangar assemblies.
|
Feature |
Available Customization |
|
Pre-Lubricated Sets |
Nuts pre-lubricated to ensure consistent K-factor during torqueing |
|
Custom Lengths |
Extra-long bolts for deep beam-to-column connections |
|
Tension Control Bolts (TCB) |
Production of "twist-off" style structural bolts (System HRC) |
|
Direct Tension Indicators (DTI) |
Supplied with DTI washers for visual preload verification |
15+ Years Structural Focus:
Egyptian Manufacturing:
Certifications:
Global Reach:
Capacity:
Cost Advantage:
Packing & Logistics
Ports:
Incoterms:
Packaging:
Do you supply the complete HV set (Bolt, Nut, 2 Washers)?
1. Yes, we recommend ordering as a complete set to ensure compatibility and certified performance.
What is the torque-tension relationship for your HDG bolts?
2. Our HDG structural bolts are produced with specific thread allowances to maintain consistent torque-tension results after galvanizing.
Are your bolts CE-marked?
3. We manufacture according to EN 14399 standards and can provide the necessary declarations for EU projects.
What is the MOQ for M36 bolts?
4. Generally 500 pieces, but we can discuss smaller quantities for specific project phases.
How do you ensure the 10.9 hardness?
5. Every batch undergoes automated heat treatment and 100% hardness testing at our in-house lab.
Company:
Address:
Email:
Phone/WhatsApp:
Certifications:
Logistics:
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